We all know that the age can be calculated, only if you include your birthday, which I think anyone should do.
I am from Argentina and some people just decide to include it and others don't
But I wonder if maybe including both the birthday and the age could be nice.. I think it gives the impression that at least it is updated and also makes you keep it updated too.
Also I think you make it a bit easier to the other person so that he doesn't have to calculate it.
Maybe it does not make a positive effect, but would it make a negative effect to include it?
So, should I include it both the age and the birthday? Only the birthday? Only the age? Maybe none of them?